The aim of the article is to analyse and comprehend the interplay of institutional logics in the realisation of Stockholm's House of Culture, Kulturhuset, hereby beginning to answer the question of what role cultural logics play in cultural development projects. Based on an in-depth case study of the process leading up to the creation of Kulturhuset, the article explores the interplay of a politico-bureaucratic logic and a cultural–professional logic governing the evolution of the project. Following a Scandinavian tradition of interpretative studies of complex development projects, the making of Kulturhuset is framed as an extraordinary project involving a complicated development process. The process dynamics are explored and analysed through the lens of institutional complexity. The article's main contribution lies in its highlighting the interplay of – and nuancing the relation between – institutional logics. It also serves as a reminder of the power of bureaucratic ordering in urban development projects.